1801035 has 20 divisors (see below), whose sum is σ = 3229248. Its totient is φ = 960336.

The previous prime is 1801021. The next prime is 1801039. The reversal of 1801035 is 5301081.

It is a happy number.

It is not a de Polignac number, because 1801035 - 2⁵ = 1801003 is a prime.

1801035 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1800999 and 1801017.

It is not an unprimeable number, because it can be changed into a prime (1801039) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1819 + ... + 2628.

2^1801035 is an apocalyptic number.

1801035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1801035 is a deficient number, since it is larger than the sum of its proper divisors (1428213).

1801035 is an equidigital number, since it uses as much as digits as its factorization.

1801035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464 (or 4455 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1801035 is about 1342.0264527944. The cubic root of 1801035 is about 121.6673505518.

The spelling of 1801035 in words is "one million, eight hundred one thousand, thirty-five".